Anyone tried this with the latest version of WP to see if it works?
Post automatically merged:
I went ahead and tried this and seems to be working well for me so far.
Currently on WP 5.8.3.
Haven't tried the geo features.
Just uploaded the whole CPA-R6 directory to the WP plugins directory.
Set up a single redirect with one WP post as the referrer.
Apparently most modern web browsers strip HTTP referrers to only show the domain someone's coming from by default to protect user privacy. But I managed to test this with older versions of macOS Safari and iOS Safari, as well as IE 11 which set the full referrer URL, so looks like it's working when browser allows.